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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 934 · 40 questions
TalentJR

The fast method (Jump the point): Count the zeros: 10 → 1 jump, 100 → 2 jumps, 1000 → 3 jumps. × moves the point right; ÷ moves it left. Run out of digits? Fill the gaps with 0s. Drop 0s at the end of a decimal: 3.40 is 3.4.

NameDateTime takenScore ___ / 40
  1. 1.48.06 ÷ 1000 =
  2. 2.145.2 × 1000 =
  3. 3.45.03 × 1000 =
  4. 4.145.9 × 10 =
  5. 5.204.1 × 10 =
  6. 6.67.1 ÷ 10 =
  7. 7.416.7 × 1000 =
  8. 8.41.2 ÷ 1000 =
  9. 9.251.6 × 10 =
  10. 10.327.1 × 1000 =
  11. 11.23.61 × 10 =
  12. 12.110.1 × 1000 =
  13. 13.14.01 × 100 =
  14. 14.338.5 ÷ 1000 =
  15. 15.454.1 × 1000 =
  16. 16.95.7 ÷ 100 =
  17. 17.1.68 ÷ 100 =
  18. 18.32.23 ÷ 100 =
  19. 19.46.03 ÷ 1000 =
  20. 20.193.3 × 10 =
  21. 21.20.25 × 1000 =
  22. 22.444.5 ÷ 1000 =
  23. 23.33.09 × 100 =
  24. 24.47.49 × 10 =
  25. 25.6.01 × 1000 =
  26. 26.233.4 × 100 =
  27. 27.475.5 × 10 =
  28. 28.246.7 × 100 =
  29. 29.110.9 ÷ 1000 =
  30. 30.47.82 × 10 =
  31. 31.43.41 ÷ 10 =
  32. 32.6.67 ÷ 1000 =
  33. 33.314.1 × 10 =
  34. 34.26.53 ÷ 1000 =
  35. 35.29.53 ÷ 10 =
  36. 36.469.6 ÷ 1000 =
  37. 37.117.4 × 10 =
  38. 38.115.1 ÷ 10 =
  39. 39.24.53 × 10 =
  40. 40.7.94 ÷ 10 =

Answer key

  1. 0.04806
  2. 145200
  3. 45030
  4. 1459
  5. 2041
  6. 6.71
  7. 416700
  8. 0.0412
  9. 2516
  10. 327100
  11. 236.1
  12. 110100
  13. 1401
  14. 0.3385
  15. 454100
  16. 0.957
  17. 0.0168
  18. 0.3223
  19. 0.04603
  20. 1933
  21. 20250
  22. 0.4445
  23. 3309
  24. 474.9
  25. 6010
  26. 23340
  27. 4755
  28. 24670
  29. 0.1109
  30. 478.2
  31. 4.341
  32. 0.00667
  33. 3141
  34. 0.02653
  35. 2.953
  36. 0.4696
  37. 1174
  38. 11.51
  39. 245.3
  40. 0.794

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